參數(shù)資料
型號(hào)： SCANPSC110FSC
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 微控制器/微處理器
英文描述： SCAN Bridge Hierarchical and Multidrop Addressable JTAG Port (IEEE1149.1 System Test Support)
中文描述： SPECIALTY MICROPROCESSOR CIRCUIT, PDSO28
封裝： 0.300 INCH, MS-013, SOIC-28
文件頁(yè)數(shù)： 22/25頁(yè)
文件大?。?/td> 283K
代理商： SCANPSC110FSC
www.fairchildsemi.com
22
S
Appendix
Note:
The value of the TMS during the rising edge of TCK is located next to each transition.
FIGURE 17. IEEE 1149.1 TAP Controller State Diagram
Applications Example
FIGURE 18. Boundary Scan Backplane with 10 Card Slots, 8 Slots Are Filled with Boards
The following sequence gives an example of how one
might use the SCANPSC110F Bridge to perform 1149.1
operations via a multi-drop scan backplane. The system
involved has 10 card slots, 8 of which are filled with mod-
ules, and 2 slots are empty. (See Figure 18).
More Information can be found in Application Notes:
AN-1023
Structural System Test via IEEE Std. 1149.1
with SCANPSC110F Hierarchical and Multi-
drop Addressable JTAG Port
AN-1022
Boundary Scan, An Enabling Technology for
System Level Embedded Test
1. After the system is powered up a level-1 reset is per-
formed via the TRST input. All TAP Controllers (both
SCANPSC110F and local) are asynchronously forced
into the
Test-Logic-Reset
state. All LSP Controllers are
in the parked
Test-Logic-Reset
state; this forces the
TMS
L
outputs of each port to a logic
“
1
”
, keeping all
board TAPs in the
Test-Logic-Reset
state.
2. The first task of the tester is to find out which slots are
occupied on the backplane. This is accomplished by
performing a serial poll of each slot address in the sys-
tem, as assigned by the S
0
–
5
value of each
SCANPSC110F in the system.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SCANPSC110FSCX 功能描述:特定功能邏輯 SCAN JTAG Port RoHS:否 制造商:Texas Instruments 產(chǎn)品: 系列:SN74ABTH18502A 工作電源電壓:5 V 封裝 / 箱體:LQFP-64 封裝:Tube
SCANSTA101 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Low Voltage IEEE 1149.1 STA Master
SCANSTA101_06 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Low Voltage IEEE 1149.1 STA Master
SCANSTA101SM 功能描述:接口 - 專用 RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59
SCANSTA101SM/NOPB 功能描述:接口 - 專用 Low Vltg IEEE 1149.1 Sys Test Access RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59
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